Siemens Sentron 3VA, Руководство пользователя

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Description
2.2 Ergonomic design
3VA molded case circuit breakers with UL and IEC certification
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Manual, 01/2019, L1V30435333-01
2.2 Ergonomic design
This chapter provides an overview of the ergonomic design features of the new 3VA UL
molded case circuit breakers and explains what makes them so special.
The topics discussed in this chapter are listed below:
● Optional installation variants
● Color-coded indication of switching position in the draw-out unit
● Clear status indication
● Active illumination
● Ergonomic handle
● Color-coded control elements
● Broad range of accessories
● Connection options
Integrated system
The 3VA UL molded case circuit breakers set new standards, not only in terms of their
technical features and functional scope, but also in terms of their design.
The new 3VA UL range provides an integrated system with regard to operation, functionality
and installation. This principle is embodied in the basic units and in all internal and external
accessories.
The internal and external accessories of the 3VA UL molded case circuit breakers offer the
following benefits:
● Standardized methods of operation
● Standardized scope of functions
● Standardized installation procedures
● The same internal accessories for all circuit breaker sizes from 125 A to 600 A (auxiliary
switches, auxiliary releases)
2.2.1 Installation variants for 3VA UL
To ensure full flexibility when planning a system, the molded case circuit breaker range can
be extended with additional components in such a way that operability is guaranteed in every
situation.
The following components can be installed to suit the installation location:
● Front mounted rotary operator
● Door mounted rotary operator
● Operator kit with Bowden cable (Max-Flex™ operator)
● Operator kit with rigid linkage (in preparation)
● Motor operator